Why knock songs like Roses Of Picardy, Lighter? Bit cheap and patronising, isn't it? I have no doubt it was a "genuinely moving experience" rather than "a sentimental stinkeroo" when sung by the likes of Ernest Pike & Count John McCormack, as well as by June 80 years later, and played in a jazz arrangement by the great Sidney Bechet; quite apart from serving a vital purpose by being a favourite of the men on the way to the Front in 1917 [see Wikipedia].

~Michael~